iTegno 39XX GPRS Modem
AT Commands Guide
02000C17
•
v1.5
Confidential
All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this
document. It may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd. © 2011, 2012 iWOW
Connections Pte Ltd
192
(+CMTI responses)
+CREG: 0,0
This response means GSM registration is lost
and it triggers off a hardware indication on
GPIO-2 (RI) to the MCU, which wakes up after
6-7s. This indication is shown only after the
600s duration has expired.